Write v3-status-votes file even when we fail to make a consensus
In dirvote_compute_consensuses(), we have checks for `if (n_votes <= n_voters/2)` and `if (!n_vote_running)`, which cause us to fail and abort, before we get around to the
```
votefile = get_datadir_fname("v3-status-votes");
write_chunks_to_file(votefile, votestrings, 0, 0);
```
lines.
We should write the votes out to the file earlier in this process, so operators can read them to see available votes even in the failure case.
issue